Results 141 to 150 of about 361,091 (296)
Casting Light on Integer Partitions
Summary: Integer partitions ofnare viewed as bargraphs (i.e., Young diagrams rotated anticlockwise by 90 degrees) in which theith part of the partition \(x_i\) is given by the \(i\)th column of the bargraph with \(x_i\) cells. The sun is at infinity in the northwest of our two dimensional model and each cell may or may not be lit depending on whether ...
Blecher, Aubrey +2 more
openaire +2 more sources
Donor‐acceptor fractal synergy: Decoding self‐similarity for stable organic photovoltaics
FlexMat, EarlyView.Morphological congruence between donor and acceptor refines the fractal structure of bulk heterojunction films and enhances their self‐similarity. This optimized multiscale morphology preserves charge‐transport pathways against external disturbances, suppresses structural degradation, and improves the operational stability of organic solar cells while ...
Runzheng Gu +13 more
wiley +1 more source
Reformulation and decomposition of integer programs [PDF]
In this survey we examine ways to reformulate integer and mixed integer programs. Typically, but not exclusively, one reformulates so as to obtain stronger linear programming relaxations, and hence better bounds for use in a branch-and-bound based ...
WOLSEY , Laurence +1 more
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Journal of Forecasting, EarlyView.ABSTRACT This paper presents a method for forecasting limit order book durations using a self‐exciting flexible residual point process. High‐frequency events in modern exchanges exhibit heavy‐tailed interarrival times, posing a significant challenge for accurate prediction.
Kyungsub Lee
wiley +1 more source
Global Strategy Journal, EarlyView.Abstract Research Summary This study examines how international diversification interacts with government affiliation to shape innovation outcomes in emerging market firms. We reconceptualize government affiliation as a resource‐structuring mechanism that varies across hierarchical levels and influences the coherence of firms' dominant logics of ...
Danielle R. Combs +3 more
wiley +1 more source
Brexit and Its Impact on EU Financial Markets
International Journal of Finance &Economics, EarlyView.ABSTRACT We investigate the impact of Brexit on volatility spillovers across the EU countries. We introduce a Brexit intensity measure that assigns an intensity score reflective of the financial markets' reaction to the events that occurred as Brexit negotiations began to unfold.
Marwan Izzeldin +3 more
wiley +1 more source
Application of mixed integer programming to a large scale logistics problem [PDF]
Integer Programming;Logistics ...
Westerhof, A.J. +2 more
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Motive and Opportunity: Order Choice in a Limit Order Book With Dispersed Information
International Journal of Finance &Economics, EarlyView.ABSTRACT We test predictions of market microstructure theory relating to the determinants of order choice in a limit order book where information is dispersed among traders. Using an experimental limit order book, with a large state space, we find that informed traders exhibit patience, compatible with the ‘waiting game’ behaviour described in Foster ...
James Steeley +2 more
wiley +1 more source
Irrigation and Drainage, EarlyView.ABSTRACT The agronomic benefits of oxygen‐enriched irrigation, such as improved root development, enhanced nutrient uptake, and reduced fertiliser and pesticide requirements, are well documented. However, incorporating oxygenation devices into fertigation systems increases energy demand and material use, thereby incurring additional environmental ...
Alberto Imbernón‐Mulero +4 more
wiley +1 more source
Efficient Estimation of Autoregression Parameters and Innovation Distributions forSemiparametric Integer-Valued AR(p) Models (Revision of DP 2007-23) [PDF]
Integer-valued autoregressive (INAR) processes have been introduced to model nonnegative integer-valued phenomena that evolve over time. The distribution of an INAR(p) process is essentially described by two parameters: a vector of autoregression ...
Werker, B.J.M. +2 more
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